how can i purge my archivelog from OS date wise?thank in advance.
There is no such policy/option available AFAIK. The only way for you is to delete those archived logs which are backed up a certain number of times.
If you have your archive logs go to the Fast Recovery Area and use RMAN to backup, they are purged automatically.
Please refer to the relevant backup and recovery documents in the online documentation of your unknown version of Oracle.
To delete files datewise, which will compromise the recoverability of your database, please type
in any command prompt and consult the ctime, mtime, atime and exec clause.
For the rest, kindly keep your doc questions OUT of this forum.
Thanks in advance for doing so,
Senior Oracle DBA